1,3,4,5-Tetrahydroazepin-2-ones by Dearomatising Anionic Cyclisation of <i>N</i>-Allyl-1-Naphthamides
作者:Anjum Ahmed、Jonathan Clayden、Michael Rowley
DOI:10.1055/s-1999-2977
日期:1999.12
On treatment with t-BuLi and DMPU, 1-naphthamides bearing N-allyl or N-prenyl substituents cyclise to give a mixture of products from which seven-membered lactams can be isolated in up to 73% yield - the first example of an organolithium-C=C cyclisation leading to a seven-membered ring.